Plastic compound and method of making said compound.



, nipulation on FERDINAND. GERHABD .WIECHMANN, OF

NEW YORK, N. Y., Assmfihn mo rnnoronm CORPORATION, OF HASTINGS UPON HUDSON, NEW YORK, A (J012,1OIRA'IIlIOZllT OF NEW YORK.

PLASTIC GOMPOUND AND -METHOD OF MAKING; SAID COMPOUND.

No Drawing;

Specification of Letters Patent. Patented July 1913. Application filed February 1, 1910. Serial in 541,336.

; combining caoutchouc or any gum, as for instance balata, chicle', rubber or-rubber substitutesof whatever-nature, with vegetable albumen, audit desired with a consolidat-.

ing agent, a. loading material or a coloring material. 1

To carry my invention into effect lproceed 'inthe following manner Example 1: I take caou'tchouc .or any of the gums, rubber orv rubber substitutes above specified, and place them in the rubber mill, and thenmanipulate them and sheet them in the usual .-manner.--.- lWhen this stage is reached ll ,intro-duce vegetable albumen in whatever form I choose to employ it, for mstance in a finely pulverized condition, and

then intimately mix the two together," in

the usual manner. [he mill may be either cold or heated, and the products heated until the desired degree of intimate admixture is reached. ll can carryonthis process with varied amounts ofthe. substances employed, thus for instance, ll may employ 25% of the caoutchouc. or rubber-and 75% of the vegetable albumen, depending upon the final,

product which I wish to obtain, whether soft, semi-solid or solid.

Example 2: I start with the caoutchouc or gum, rubber or rubber substitute, whichever I choose to employ, and submit it to the same manipulation in the rubber mill, as described in Example 1, and then incorporate with it on' the mill, the vegetable albumen in solution. As a sample of a solution which I may employ, I take parts of vegetable albumen to which I add' 50 parts of a condensation product of phenol and, formaldehyde, and continue the mathe mill (hot or cold) until the bodies are intimately mixed.

. Example 3: I treat the caoutchouc or gum, rubber or rubber substitute in the manner described in'Example 1', and to this I add a dry pulverized mixture of vegetable albumen, and a dry' con ensation product of phenol and fO TmaIdeh de, and continue the manipulation until the partsare intimately mixed, after which, as the material leaves the mill, it maybe subjectedto the act1on of temperature and pressure to. bring v about final consolidation of the product.

Example 4:1 treat thecaoutchouc or gum,

rubber or rubber substitute in the manner described in Example 1, and then add .on the mill, a body composed of a siccative oil such as oxidizedlinseed oil and vegetable albumen." I may also add any body zwhich will coact with the rubber to producefa hard substance when subjected to vulcanization. 1

Examplefi :.l[ treat the caoutchouc or gum, rubber or rubber substitute-in the manner described in Example 1, and then addon the mill, vegetable albumen; auloading :ma-

terial such as whiting, cellulose, woodpulp, or any material such asiis'used in loading rubber may be employed, and if desired a coloring material. I may also use a; consohdat ng material such as-a condensation product of phenol and formaldehyde, or a substance such-as .sulfunnwhich will promote. vulcanization.

In my application. Ser. No. 527,754; filed Nov.*13, 1909 is described and claimed the compounding oil:- the particular vegetable albumen known in the art as vegetable ivory or corozo with. rubber and with products at reaction of phenol and formaldehyde,

and the. products resulting therefrom. The

' claims of the present application are drawn to the compounding of vegetable albumen in a somewhat similar manner, and are generic to the claims of such application.

Such albuminous vegetable substances or.

vegetable albumens in a finely ground con dition form a most intimate combination with rubber both alone and when products of reaction of phenol and formaldehyde are also added andto some extent seemto simulate and replace sulfur'in the rubber com-' pounds. In carrying out the process described in the five examples, ll prefer, as stated, to

sheet the rubber on an ordinary mill. I'do r not limit myself however to this treatment, as I may reduce the rubber 'to a plastic con.-

dition by the. addition of any rubber solvent, such as for instance, carbon bi-sulfid. I further prefer to divide .the vegetable albumen to a fine powder which may be "done by grinding or otherwise. I further agent (sulfur), or the loading materials, as

the order of use or incorporation will depend upon the character of the body to be produced. I may also incorporate coloring.

materials of various kinds as well as other materials for special uses, as for instance, abrasive materials, materials such as finely divided particles of-metals intended to present frictional surfaces, as for instance in the formation of non-skidding tires and the like. I

= Generally, I wish it understood that I claim the employment, with caoutchouc or a gum of the character specified, of vegetable albumen, together with any and every material which may be employed to bring these materials into a condition suitable for uses in the arts, whether in the form of a soft, semi-soft or a hard body. 7

Having thus described my invention, I claim:

1. A new plastic composition comprising rubber and vegetable albumen, in a substantially homogeneous form, and containing an amount of vegetable albumen greater than the amount of rubber present.

2. In combination with a gum of the character indicated, a vegetable albumen and acondensation product of phenol and formaldehyde.

3. In combination with a gum ofv the character indicated, a vegetable albumen, a condensation product of phenol and formaldehyde, and a vnlcanizing agent.

. 4. Theproeess of producing a substance of the character specified, which consists in first reducinga gum of the character indicated to the form of a sheet, and then incorporating therewith a vegetable albumen.

5. The process described which consists in reducing a gum of the character indicated to a plastic condition and then introducing a vegetable albumen and a consolidating agent.

6. The process described which consists in reducing a gum of the character indicated to the form of a sheet, distributing thereon and rolling therein pulverized vegetable albumen, then sprinkling thereon and rolling therein a condensation product of phenol and formaldehyde.

7 The process described which consists in mixing a um of the character indicated with vegeta le albumen, then adding a product of reaction of phenol and formaldehyde, and finally subjecting the mass to the required temperature to effect consolidation of the same.

8. A new plastic composition comprising rubber, vegetable'albumen and other compounding materials in a substantially homogeneous and consolidated form, the amount of vegetable albumen being greater than the amount of caoutchouc present.

In testimony .whereof, I afiix my signature, in the presence of two witnesses.

FERDINAND GERHARD WIECHMANN.

Witnesses:

HELEN E. KOELSCH, W. A. Tow'NER, Jr. 

